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Moka, Willem
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Earth & Planetary Sciences

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PENUTUPAN KARANG DI PULAU BARANGLOMPO DAN PULAU BONE BATANG BERDASARKAN METODE REEF CHECK Ilham, Ilham; Litaay, Magdalena; Priosambodo, Dody; Moka, Willem
Jurnal Ilmu Kelautan SPERMONDE VOLUME 3 NUMBER 1, 2017
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v3i1.2123

Abstract

The Research on “Coral Coverage in Baranglompo Island and Bone Batang Island Based on Reef Check Method” was conductedin April 2016. The aims of this study was to determine and to compare the condition of reefs in Baranglompo and Bone BatangIslands based on the percentage of life coral cover by using Reef Check methods. This study also aims to determine whichfactors that most affect the percentage of coral cover on each island i.e: abiotic factors (temperature, salinity and substrate inthe form of rock, rubble, sand, silt/clay); biotic factors (soft coral, recent killed coral, algae, sponges, fish and invertebratesassociate) and anthropogenic factors (garbage, ilegal fishing/bombs, stun, anchors, nets) were also investigated. Percentage oflife coral cover obtained by Line Intercept Transect (LIT) along 100 meters at a depth of 3 meters and 10 meters. The resultsshowed that the condition of coral reefs in Baranglompo was classified as moderate with an average percentage coral coverageof 42% at a depth of 3 meters and 27% at a depth of 10 meters. While the condition of coral reefs in Pulau Bone Batang wasrelatively good with average coral cover of 51% at 3 meters depth and moderate with average coral cover of 39% at 10 metersdepth. Condition of coral reefs in Bone Batang is better than Baranglompo islands. Anthropogenic impacts in the form of wasteis the most influential factor on coral cover on the island Baranglompo. Whereas fishing activities by using dinamite are thefactors that most influence on coral cover on the island of Bone Batang.Keywords: Coral coverage, Baranglompo island, Bone Batang island, Reef Check
Biodiversity of Marine Tunicates at Samalona Waters, Sangkarang Archipelago, Indonesia Litaay, Magdalena; Santosa, Slamet; Johannes, Eva; Agus, Rosana; Moka, Willem; Darmansyah Tanjung, Jennyta Dhewi
Jurnal Ilmu Kelautan SPERMONDE VOLUME 4 NUMBER 1, 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i1.3616

Abstract

The study aims to know the biodiversity and community structure of marine tunicate of Samalona waters. The present study is part of biodiversity assessment for marine resources of Sangkarang Archipelago SW Makassar Indonesia. Field campaign was conducted from October to November 2016. Sample collection was done at depth of 3 m and 5 m by using Line Intersection Transect (LIT) method combination plot. Two transects size of 50 m were placed parallel to a shore line at three stations (sta.) at Samalona waters. Plot size 2.5 x 2.5 m was placed side by side of transect and all tunicate inside plot was noted, identified, counted and photographed. Sample collection was collected by using SCUBA and under water camera. Environmental parameters including water temperatue, salinity, dissolved oxygen, clarity, current speed, and wind speed were measured in situ. Data were analysed using ecological indices including species composition and density, Shanon Wienner species diversity, Evenness, and Morisita Indices. The result indicates that there are 18 species of tunicates present at depth of 3 m and 7 meters of Samalona waters, respectively. The result of the ecological analysis shows that species diversity is categorized moderate and no dominant species. Environment parameters indicatess that water quality at Samalona waters is in good condition to support tunicates.
BIODIVERSITY OF MARINE TUNICATES IN SAMALONA WATERS, SANGKARANG ARCHIPELAGO, INDONESIA Litaay, Magdalena; Santosa, Slamet; Johannes, Eva; Agus, Rosana; Moka, Willem; Tanjung, Jennyta Dhewi Darmansyah
Jurnal Ilmu Kelautan SPERMONDE VOLUME 4 NUMBER 1, 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i1.3920

Abstract

The study aims to know the biodiversity and community structure of marine tunicate in Samalona waters. The present study is part of biodiversity assessment for marine resources of Sangkarang Archipelago SW Makassar Indonesia. Field campaign was conducted from October to November 2016. Sample collection was done at 3 and 7 m depth by using Line Intersection Transect (LIT) method combined with a quadrat (plot). Two 50 m transects were placed parallel to a shore line at three stations (sta.) at Samalona waters. A quadrat (plot) (2.5 m x 2.5 m) was placed side by side of the line transect and all tunicates in the transect was recorded, identified, counted and photographed. Samples were collected by using SCUBA and under water camera. Environmental parameters including water temperatue, salinity, dissolved oxygen, clarity, current and wind speed, were measured in situ. Data were analysed using ecological indices including species composition and density, Shanon Wienner species diversity, Evenness, and Morisita Indices. The result indicates that there are 18 species of tunicates present at 3 m as well as 7 m depth of Samalona waters.. Result of the ecological analysis shows that species diversity can be categorized as moderate and there were no dominant species. Environmental parameters indicates that water quality at Samalona waters was in good condition to support tunicates.
Co-Authors Darmansyah Tanjung, Jennyta Dhewi Dody Priosambodo Eva Johannes Ilham Ilham Magdalena Litaay Rosana Agus Slamet Santosa Tanjung, Jennyta Dhewi Darmansyah